High sensitivity 2 β decay study of 116Cd and 100Mo with the BOREXINO counting test facility (CAMEO project)
Abstract
The unique features (super-low background and large sensitive volume) of the CTF and BOREXINO set ups are used in the CAMEO project for a high sensitivity study of ^{100}Mo and ^{116}Cd neutrinoless 2β decay. Pilot measurements with ^{116}Cd and Monte Carlo simulations show that the sensitivity of the CAMEO experiment (in terms of the half-life limit for 0ν 2β decay) is ≈ 4× 10^{24} yr with a 1 kg source of ^{100}Mo and ≈ 10^{26} yr with ≈ 100 kg of enriched ^{116}CdWO_4 crystals placed in the liquid scintillator of the CTF. The last value corresponds to a limit on the neutrino mass of m_ν ≤ 0.06 eV. Similarly with 1000 kg of ^{116}CdWO_4 crystals located in the BOREXINO apparatus the neutrino mass limit can be pushed down to m_ν ≤ 0.02 eV.
- Publication:
-
European Physical Journal C
- Pub Date:
- February 2001
- DOI:
- 10.1007/s100520100594
- arXiv:
- arXiv:nucl-ex/0007012
- Bibcode:
- 2001EPJC...19...43B
- Keywords:
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- Nuclear Experiment
- E-Print:
- 29 pages, LaTex, 9 eps figures